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All results from a given calculation for C2H5NO3 (Nitric acid, ethyl ester)

using model chemistry: CISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CISD/3-21G*
 hartrees
Energy at 0K-356.072851
Energy at 298.15K-356.080739
HF Energy-355.472515
Nuclear repulsion energy246.224457
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CISD/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3226 3014 14.15      
2 A' 3203 2993 2.15      
3 A' 3156 2949 8.04      
4 A' 1641 1534 6.99      
5 A' 1625 1518 5.88      
6 A' 1533 1432 10.05      
7 A' 1482 1385 145.20      
8 A' 1467 1370 116.42      
9 A' 1201 1123 48.74      
10 A' 1183 1105 216.93      
11 A' 1051 982 83.76      
12 A' 972 908 45.70      
13 A' 881 824 43.11      
14 A' 701 655 1.80      
15 A' 540 504 5.30      
16 A' 387 361 6.99      
17 A' 231 216 0.33      
18 A" 3262 3048 22.93      
19 A" 3231 3019 2.14      
20 A" 1612 1506 7.28      
21 A" 1367 1277 0.01      
22 A" 1246 1164 6.32      
23 A" 894 835 0.79      
24 A" 708 661 23.28      
25 A" 256 239 0.64      
26 A" 120 112 2.36      
27 A" 101 94 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18637.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 17414.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CISD/3-21G*
ABC
0.31730 0.07155 0.05969

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.116 -0.310 0.000
O2 0.000 0.606 0.000
O3 2.225 0.250 0.000
O4 0.842 -1.535 0.000
C5 -1.299 -0.118 0.000
C6 -2.341 0.999 0.000
H7 -1.357 -0.743 0.885
H8 -1.357 -0.743 -0.885
H9 -3.340 0.562 0.000
H10 -2.225 1.620 0.885
H11 -2.225 1.620 -0.885

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.44391.24171.25532.42253.69692.66252.66254.54093.95903.9590
O21.44392.25302.30091.48722.37412.10842.10843.34062.60072.6007
O31.24172.25302.25743.54264.62713.82083.82085.57364.73954.7395
O41.25532.30092.25742.56734.06882.49992.49994.67884.48874.4887
C52.42251.48723.54262.56731.52791.08501.08502.15192.15982.1598
C63.69692.37414.62714.06881.52792.18732.18731.08991.08811.0881
H72.66252.10843.82082.49991.08502.18731.77092.53352.51733.0777
H82.66252.10843.82082.49991.08502.18731.77092.53353.07772.5173
H94.54093.34065.57364.67882.15191.08992.53352.53351.77401.7740
H103.95902.60074.73954.48872.15981.08812.51733.07771.77401.7705
H113.95902.60074.73954.48872.15981.08813.07772.51731.77401.7705

picture of Nitric acid, ethyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 C5 111.467 O2 N1 O3 113.837
O2 N1 O4 116.780 O2 C5 C6 103.881
O2 C5 H7 109.109 O2 C5 H8 109.109
O3 N1 O4 129.383 C5 C6 H9 109.432
C5 C6 H10 110.168 C5 C6 H11 110.168
C6 C5 H7 112.570 C6 C5 H8 112.570
H7 C5 H8 109.390 H9 C6 H10 109.075
H9 C6 H11 109.075 H10 C6 H11 108.899
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability